Siemens siprotec 7SJ63, Инструкция по эксплуатации

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Functions
6-17
7SJ63 Manual
C53000-G1140-C120-1
•
Because the thermal cure of the overload protection is “frozen” (held constant) dur-
ing motor start-up, the setting must be high enough to allow operation of the over-
load protection at higher load current levels.
6.1.3.1 Settings
In the list below, the setting ranges and default setting values are for a device with a
nominal current rating I
N
= 5 A. Consider the current transformer ratios when setting
the device with primary values
For a nominal current rating I
N
= 1 A:
−
For the pickup current (I MOTOR START) , divide the Setting Options values and
default setting values by 5.
−
For the Ground resistance and reactance ratios, multiply Setting Range and Setting
Increments by 5!
1
) depending of the ordering code
6.1.3.2 Information
Addr. Setting Setting Options Default Setting Comments
1101 V PRIMARY OP. 0.10 ~ 400.00 kV 12.00 kV Nominal operating voltage of primary
equipment
1102 I PRIMARY OP. 10 ~ 50,000 A 100 A Nominal operating current of primary
equipment
1103 RG/RL Ratio 0.33 ~ 7.00 1.00 Ground resistance ratio
1104 XG/XL Ratio 0.33 ~ 7.00 1.00 Ground reactance ratio
1105 x’ 0.002 ~ 2.000
Ω
/mile
1
) 0.200
Ω
/mile
1
) Line reactance value in secondary
ohms
1106 x’
0.001 ~ 1.243
Ω
/km
1
) 0.124
Ω
/km
1
)
Line reactance value in secondary
ohms
1107 I MOTOR START 3.00 ~ 50.00 A
12.50 A
1
)
Motor start-up current
F# LCD-Text Comment
533 IA = Primary interrupted current Phase A
534 IB = Primary interrupted current Phase B
535 IC = Primary interrupted current Phase C
501 Device Pickup Pickup (protection)
511 Device Trip device trip (general)
126 Prot ON/OFF Protection On/Off (IEC60870-5-103)
561 Man.Clos.Detect Manual Close Detection (Impulse)
356 > Manual Close Manual Close
2720 > Enable ANSI#-2 > Enable 50/67-(N)-2 (override 79 blk)
4601 > 52-a contact is open if breaker is open
4602 > 52-b contact is open if breaker is closed
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